I have FM and am now starting to wonder about CFS. For about the last 4-6 months I have been VERY fatigued. I have also been having short-term memory and concentration problems. I sleep around 9 hours a night and today I took a 1 hour nap. I had my physical on Monday and told him about my "brain" problems and he didn't really have an answer. Told me that I need to slow down my thought making process. Told him my mind goes 1000mph. and my mouth only goes 2mp. It's so hard to slow down my mind!! Had a blood test done for thyroid problems and it came back saying borderline overactive thyroid. Wants to re-check in 3 months. For all of you living with CFS, can you tell me if this is somewhat how you feel? Thank you and God Bless!!